ashtank33
ashtank33
15-06-2020
Mathematics
contestada
Solve x2+4x-7=0 by completing the square
Respuesta :
mhanifa
mhanifa
15-06-2020
Answer:
-2- √11
-2+√11
Step-by-step explanation:
x²+4x-7=0
x²+4x+4- 11=0
(x+2)²-11=0
(x+2+√11)(x+2-√11)=0
x+2+√11=0 ⇒
x= -2- √11
x+2 -√11=0 ⇒
x= -2+√11
Answer Link
Ogulab21
Ogulab21
15-06-2020
(X+2)^2 - 2 - 7
(X+2+3) (x+2-3)
Answer Link
VER TODAS LAS RESPUESTAS ( 32+ )
Otras preguntas
Why does the body switch between cellular and anaerobic respiration?
What was Sir Walter Raleigh known for? A. He was the first Englishman to live in the Americas. B. He compiled the first English dictionary. C. He designed the s
In the Peace Treaty of Paris, England recognized the United States as a new and independent nation. True False
What is the distrutive property for 9(x+5+8y)
The sum of three different numbers is 18. If every number is a prime number, what are the three numbers?
I think I got the answer but I'm not sure. Help?
What is d slope intercept of 11x-8y=-48
how many different gametes can an RRYy parent form?
which two oceans can you see on the globe above
Round 287.63 to the nearest whole number.
